Baker&#39;s oven.



No. 858,000. PATENTED JUN 25, 1907.

0. W. HELLER.

BAKBR'S OVEN.

APPLICATION FILED JAN.9, 1907.

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No. 858,000. PATENTED JUNE 25, 1907. G. W. HELLER.

BAKERS OVEN.

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UNITED STATES OLARANCE w. HELLER, OF GALVA, ILLINOIS.

BAKERS OVEN.

Specification of Letters Patent.

Patented June 25, 1907.

Application filed January 9, 1907. Serial No- 351,495;

To all whom it may concern.-

Be it known that I, CLARANOE W. HELLER, a citizen of the United States,residing at Galva, in the county of Henry and State of Illinois, haveinvented new and useful Improvements in Bakers Ovens, of which thefollowing is a specification.

This invention is a bakers oven and its object is to form an oven ofcheap and simple construction, characterized by an absence ofcomplicated and expensive flues under or over the baking chamber.

A further feature is that the ascending and descending flues are bothmade at one side or corner of the structure, on the side opposite to thefire box.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is a front elevation of the oven. Fig. 2 is a section on theline 22 of Fig. 3. Fig. 3 is a section on the line 3-3 of Fig. 1. Fig. 4is a vertical longitudinal section on the line 44 of Fig. 3.

The oven comprises a substantially rectangular structure of brick work,the walls of which are indicated at 6, inclosing the baking or ovenchamber 7 which receives its heat directly from the fire place at 8.This fire place is located at one of the front corners of the bakingchamber, and has thereunder an ash pit 9 for the removal of the ashes.The baking chamber has a door 10 at the front, as well as the usuallight hole 11 and other well known appliances useful in connection withthe oven.

At the front corner of the oven opposite to the fire place 8 is the downflue 12 which communicates at its lower end with the front end of alongitudinal flue 13 which extends thence to the back of the oven andcommunicates with another longitudinal flue 14, which is connected atthe front end to the up flue or stack 15 located at the front corner ofthe oven wall. The return flue 14 may contain a coil for heating Water,as at 16. The flues 13 and 14 are provided at the front with cleanoutdoors 17 and 18.

The back and forth flues 13 and 14 are readily constructed of brick workarched to support the weight of the parts above. Heat is communicatedtherefrom to the bottom of the oven chamber, without the complication ofa large number of back and forth flues extending under the bottom, whichare costly in construction and difficult to keep clean. The heatsupplied by the fire place passes through the baking chamber and to thedown flue 12, and thence back and forth through the fiues 13 and 14 tothe stack. The fiues are of large size so that they will not readilyclog, and can easily be cleaned out upon occasions.

In ovens of this kind the side of the baking chamber opposite to thefire isthe cold side or part of the oven. The present invention remediesthis by providing the hot air fiues under said side of the oven, therebyequalizing the tem erature therein. It is obvious that if the ues underthe Whole of the oven were continued back and forth under the wholechamber, the defect would not be remedied, because the floor of the ovenwould be uniformly heated and consequently the excess of temperaturewould still exist on the side of the oven toward the grate. By extendingthe flues under one side of the oven only, being the side opposite tothe fire, the difference in temperature is corrected and a substantiallyequal heat throughout the oven is assured. Furthermore, an advantageresults in having the up and down flues in the front corner of thestructure, as it brings the heat to said corner and thereby balances theheat of the fire box in the opposite corner; and the up and down fiues,and the fire box, being both located in the front of the structure,makes the oven somewhat hotter at the front, which is proper, becausethe bread in the front of the oven is the last in and the first out.

I claim:

1. A bakers oven having a fire place at one front corner of the bakingchamber, down and up flues at the other front corner, and backwardly andforwardly extending flues under the baking chamber and communicatingrespectively with said flues.

2. A bakers oven having a fire place in one corner of the front wall ofthe oven and down and up flues in the other front corner, and abrickwork structure extending partly under the baking chamber and havingbackwardly and forwardly extending fiues therein communicatingrespectively with said up and down lines.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

OLARANOE W HELLER.

Witnesses:

W. S. MoCLINrocx, JAS. L. Rivns.

